Originally Posted by 99gecko
I'm really curious how the offensive language "TV Guardian" works.
According to tvguardian.com
TVG« Technology is patented technology that detects foul words and mutes them. It works by monitoring the hidden closed-caption text and comparing each word against a dictionary of more than 150 offensive words and phrases. When a foul word or phrase is detected, TVG« automatically mutes the offensive language. A profanity-free version of the phrase is displayed during the mute.
You can buy this as an external box or several DVD players come with it built-in.